Remedy: Is the ADU motor rotating properly? N: 1. Check if the harness between the LGC board and the ADU drawer connector is open-circuited. 2. Check if the harness between the switching power supply and the ADU drawer connector is open-circuited. 3. Check if any of the connectors J101, J102 and J104 on the LGC board is disconnected. 4. Reduce the mechanical load on the motor by adjusting the drive system. Remove foreign matter if any. 5. Replace the LGC board. Y: Are the pins B2 and B4 of the connector J104 on the LGC board always at the level "L"? N: 1. Check if the connector J104 on the LGC board is disconnected. 2. Check if any conductor pattern on the LGC board is open- or short-circuited. 3. Check if any harness is open-circuited or any connector pin is disconnected. 4. Replace the LGC board. Y: 1. Check if any conductor pattern on the LGC board is open- or short-circuited. 2. Replace the LGC board.
Code: C06
Description: Feed motor rotation abnormal
Remedy: Is the paper feed motor rotating properly? N: 1. Check if the connector J41 of the paper feed motor is disconnected. 2. Check if the connector J109 on the LGC board is disconnected. 3. Check if the connector J703 of the switching power supply is disconnected. 4. Check if the harness between the LGC board and the paper feed motor is open-circuited. 5. Check if the harness between the switching power supply and the paper feed motor is open-circuited. 6. Check if any harness is open-circuited or any connector pin is disconnected. 7. Rotate the motor manually, clockwise as seen from its back, and if the motor load is abnormal, remove any foreign matter from the drive unit. 8. Replace the paper feed motor. 9. Replace the LGC board. Y: Are the pins A6 and A10 of the connector J109 on the LGC board always at the level "L"? N: 1. Check if the connector J41 of the paper feed motor is disconnected. 2. Check if the connector J109 on the LGC board is disconnected. 3. Check if any conductor pattern on the LGC board is open- or short-circuited. 4. Check if any harness is open-circuited or any connector pin is disconnected. 5. Replace the LGC board. 6. Replace the paper feed motor. Y: 1. Check if any conductor pattern on the LGC board is open- or short-circuited. 2. Replace the LGC board. 3. Replace the paper feed motor.
Code: C0A
Description: Developer motor rotation abnormal
Remedy: Is the developer motor rotating properly? N: 1. Check if the connector J41 or J43 of the developer motor is disconnected. 2. Check if the connector J109 on the LGC board is disconnected. 3. Check if the connector J703 of the switching power supply is disconnected. 4. Check if the harness between the LGC board and the developer motor is open-circuited. 5. Check if the harness between the switching power supply and the developer motor is open-circuited. 6. Check if any harness is open-circuited or any connector pin is disconnected. 7. Rotate the motor manually, counterclockwise as seen from its back, and if the motor load is abnormal, remove any foreign matter from the drive unit. (Do not try to rotate the motor clockwise as seen from its back.) 8. Replace the developer motor. 9. Replace the LGC board. Y: Are the pins B12 and B16 of the connector J109 on the LGC board always at the level "L"? N: 1. Check if the connector J41 of the developer motor is disconnected. 2. Check if the connector J109 on the LGC board is disconnected. 3. Check if any conductor pattern on the LGC board is open- or short-circuited. 4. Check if any harness is open-circuited or any connector pin is disconnected. 5. Replace the LGC board. 6. Replace the developer motor. Y: 1. Check if any conductor pattern on the LGC board is open- or short-circuited. 2. Replace the LGC board. 3. Replace the developer motor.
Code: C11
Description: ADU paper side guide operation abnormal
Remedy: Is the ADU pushed in securely to the copier? N: Push in the ADU securely to the copier. Y: Has the timing belt for driving the paper side guide come off? Y: Put the belt on properly. N: Is the connector J104 on the LGC board disconnected? Is the harness between the LGC board and the ADU drawer connector open-circuited? Y: Reconnect the connector. Replace the harness. N: 1. Replace the LGC board. 2. Replace the ADU.
Code: C12
Description: ADU paper end guide operation abnormal
Remedy: Is the ADU pushed in securely to the copier? N: Push in the ADU securely to the copier. Y: Has the timing belt for driving the paper end guide come off? N: Is the connector J104 on the LGC board disconnected? Is the harness between the LGC board and the ADU drawer connector open-circuited? Y: Reconnect the connector. Replace the harness. N: 1. Replace the LGC board. 2. Replace the ADU.
Code: C13
Description: 1st cassette tray operation abnormal
Remedy: Is the cassette pushed in properly to the copier? N: Push in the cassette properly to the copier. Y: Is the harness between the LGC board and the cassette tray-up limit sensor open-circuited? Is the harness between the LGC board and the cassette tray-up motor open-circuited? Is the cassette tray-up limit sensor connector, cassette tray-up motor connector, or connector J106 on the LGC board disconnected? Y: 1. Reconnect the connector. 2. Replace the harness. N: Is the gear of the cassette tray-up motor unit broken? Y: Replace the gear. N: 1. Replace the cassette tray-up motor. 2. Replace the cassette tray-up limit sensor. 3. Replace the paper feed unit. 4. Replace the LGC board.